Automatic saw-lubricator



(No Model.)

R. J. EDWARDS.

AUTDMATIG SAW LUBRIGATOR.

Patented Oct. 13,1891.

UNITED STATES PATENT OFFICE.

RICHARD J. EDW'ARDS, OF GALENA, ILLINOIS.

AUTOMATIC SAW-LUBRICATOR.

SPECIFICATION forming part of Letters Patent No. 461,074, dated October13, 1891.

' Application filed February 20, 1891. Serial No. 382.176: (No model.)

To all whom it may concern:

Be it known that I, RICHARD J. ED\VARDS, a citizen of the United States,residing at Galena, in the county of Jo Daviess and State of Illinois,have invented certain new and useful Improvements in AutomaticSaw-Lubricators, of which the following is a specification, referencebeing had therein to the accompanying drawing.

Referring to the accompanying d rawi ng the figure represents aperspective view of an ordinary bucksaw provided with my improvements.

The invention has particular reference to that class of automaticlubricators particularly adapted for use on reciprocating saws andcovered by my former patent numbered 444,696 and dated January 13,1891;and it consists in certain novel improvements upon the said patenteddevice that will be fully hereinafter pointed out and claimed.

The invention is shown as applied to an ordinary bucksaw; but, inasmuchas it may without the exercise of invention be applied to other classesof reciprocating saws, I do not desire to be limited in this respect.

In the drawing, a a designate the main oiling or lubricating pads,embracing the back of the saw-blade and bearing upon opposite sides ofthe same. Secured rigidly to these pads is the inner or upper end of areciprocating rod 1), the free end of which passes through and works ina hole in the lower bar of the saw-frame, this bar working parallel withthe saw-blade and being provided with a removable split key I) in itsend to restrict its upward movement. Between the pads and the lowerbarof the saw-frame the rod is surrounded by a coil-s n'ing, the tendencyof which being to expand, the pads are kept normally pressed upward asfar as the key on I the other end of the rod will permit.

The parts above described are substantially the same as shown in myformer patent, the only material difference being that the coilspring inthe present device is not comically shaped and the upper part of thevertical reciprocating bar is done away with entirely.

Secured in the bifurcated upper or inner end of the rod 1), by means ofa horizontal removable split key 0, is a fiat steel supplemental rod orbar 0, which is at least as thin as the saw-blade, and is arrangeddirectly above and in line with the same, this thin bar extending to ornearly to the upper bar of the saw frame and being there provided with apairof supplemental lubricating-pads a a, which embrace the saw-blade ina manner similar to the main pads a.

A saw provided with my improved automatic oiling-pads, it is evident, isstarted into the wood so that the stick being sawed will come betweenthe main and supplemental pads, whereby during the reciprocations of thesaw the same will be automatically moved back and forth upon thesaw-blade, the thin connecting-bar 0 working freely in the cut made bythe saw as it advances into the wood. It will thus be seen that theportions of the saw-blade both above and below the stick of wood will bekept thoroughly and constantly oiled during the operation of the saw, itbeing simply necessary to keep the pads well saturated with a suitablelubricant. The connecting-rod has also a limited pivotal movement uponthe pin 0. in order that the lubricating-pads may rise slightly inriding over rounded sticks of wood while the saw is being started intothe same.

Having thus described my invention, what I claim, and desire to secureby Letters Patcut, is

1. The combination, with a saw-blade, of the main oiling-pads and meansfor actuating the same, and supplemental pads connected to the said mainpads so as to operate in unison therewith, bot-h pads bearing upon thesaw blade some distance from each other, substantially as described.

2. The combination, with a saw-blade, of the main oiling-pads and meansfor guiding and actuating the same, the supplemental oiling-pads locatedsome distance from the main pads, and a thin fiat bar connecting the twosets of pads and adapted to work in the cut formed by the saw in thematerial be ing sawed, substantially as set forth.

The combination, with a saw-blade, of two sets of automaticreciprocating lubricating-pads separated from and connected to eachother so as to operate in unison and bear upon the saw-blade on bothsides of the material being sawed, substantially as and for the purposedescribed.

In testimony whereof I affix my signature in presence of two witnesses.

RICHARDJ. EDWARDS.

IVitnesses:

JOHN J. J ONES, F. E. LEADER.

